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Map of Schistose Lake with depth contours

Schistose Lake

49.1547° N, 93.6016° W

Depth contours from the 1980 government survey. Not for navigation.

Download the depth map (SVG)

Schistose Lake, Ontario. 49.1547° N, 93.6016° W

Maximum depth 50 m (1980 survey). Scale bar on the map.

Not for navigation. Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/schistose-lake/, compiled October 9, 2026

  • Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
  • HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
  • Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
  • Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
  • Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.

Schistose Lake is 50 m deep at its deepest point, deeper than 94% of the 2,688 surveyed lakes in Ontario. It covers 3.41 km² and lies 22 km east of Crow Lake.

Government surveys have recorded 20 fish species here, including walleye, yellow perch and rock bass.

Maximum depth
50 msurveyed 1980
deeper than 94% of the 2,688 surveyed lakes in Ontario
Area
3.41 km²
larger than 88% of the 18,731 lakes in Ontario
Shoreline
21.9 km
longer than 89% of the 18,731 lakes in Ontario
Fish species
20
more than 96% of the 2,454 surveyed lakes in Ontario
Elevation
354 m

Today on the water

6.3 °C

Partly CloudyWind S 9 km/h

Observed at Sioux Narrows, as of 4:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 1 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hSE 10SE 10SE 10SE 20SE 20SE 20SE 20SE 15
Gusts km/h404040
Waves (est.) m0.10.10.10.20.2
Temp. °C46101314131413
Precip. %2020203030101010

Tonight: A few clouds. Wind northwest 20 km/h becoming light this evening. Low plus 4.

Weather: Sioux Narrows (local forecast), as of 4:01 a.m. CDT

Sun and moon

Civil dawn
6:54 a.m.
Sunrise
7:26 a.m.
Sunset
6:36 p.m.
Civil dusk
7:07 p.m.
Moonrise
6:19 a.m.
Moonset
5:55 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

18% of Schistose Lake is deeper than 30 m.

How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).

The government depth survey from 1980 records a maximum depth of 50 m, drawn from 35 depth contours.

Not for navigation. Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 23 government surveys (2010–2010) that recorded them.

  • Walleye12 of 23
  • Yellow Perch9 of 23
  • Rock Bass7 of 23
  • Smallmouth Bass7 of 23
  • Northern Pike5 of 23
  • Burbot4 of 23
  • Lake Whitefish4 of 23
  • Cisco3 of 23
  • Lake Trout3 of 23
  • Muskellunge2 of 23
  • Largemouth Bass1 of 23
  • Pumpkinseed1 of 23
Forage fish and other species (8)

Forage fish

  • Spottail Shiner 4
  • Ninespine Stickleback 3
  • Blackchin Shiner 2
  • Common Shiner 2
  • Johnny Darter 1
  • Logperch 1
  • Slimy Sculpin 1

Other

  • White Sucker 3

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 8 species from Schistose Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm84Mercury
Lake Whitefish45-50 cm1616Precautionary
Muskellunge>75 cm4Do not eatMercury
Northern Pike55-60 cm84Mercury
Smallmouth Bass35-40 cm84Mercury
Walleye40-45 cm84Mercury
Burbot (Ling)45-50 cm4Do not eatMercury
White Sucker40-45 cm1616Precautionary

* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide

Fishing regulations: Fisheries Management Zone 5. Check seasons and limits before you fish.